# Primal Training vs Starrett System

The clearest difference is rating: Starrett System at 5.0 against Primal Training's 4.7. Starrett System also leads on iOS requirement (13.0 vs 15.5). On price, review sentiment, ratings volume and update cadence there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Starrett System holds the better App Store score, 5.0 against 4.7. Both are backed by a comparable volume of ratings — 14 and 6 respectively. Written reviews split almost evenly too, at 0% and 0% positive.

Both ship on a similar rhythm, roughly monthly. The most recent releases landed on September 24, 2026 and September 21, 2026 respectively.

## The numbers

| Metric | Primal Training | Starrett System |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.7 (14 ratings)](https://appshunter.io/ios/app/primal-training/id1560007469/reviews) | **[5.0 (6 ratings)](https://appshunter.io/ios/app/starrett-system/id6740607477/reviews)** |
| Number of ratings | **14** | 6 |
| Positive reviews | 0.0% of reviews | 0.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Monthly | Monthly |
| Monetization | Free | Free |
| Size | 179 MB | 419 MB |
| Requires iOS | 15.5 | **13.0** |
| Devices | **iPhone, iPad, iPod, Apple Watch** | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Primal Mobility Inc.](https://appshunter.io/developer/1560007471) | [The Ready State Inc.](https://appshunter.io/developer/1311499696) |

## What reviewers say

### Primal Training

[App page](https://appshunter.io/ios/app/primal-training/id1560007469)

This app focuses on building strength in the end ranges of motion to improve mobility and flexibility. It offers structured programming, detailed exercise videos, and access to a large exercise library to help users perform better, recover faster, and resolve pain.

**Highlights:** Mobility programming for longevity and performance, Detailed mobility exercise videos, Access to over 100 exercise techniques, Apple Watch integration with HealthKit, Community support for mobility coaching

**Features:** Apple Wallet, Apple Watch app, Vision Pro support

**In-app purchases:** none


### Starrett System

[App page](https://appshunter.io/ios/app/starrett-system/id6740607477)

This comprehensive 90-day fitness, movement, and nutrition program helps you build a functional, durable, and resilient body for life. It includes expert-led training, mobility and recovery sessions, nutrition guidance, and habit tracking tools.

**Highlights:** 90-day progressive strength and interval training, Mobility and recovery sessions, Macro-based nutrition guidance, Habit tracking and goal setting, Resource vault with pain protocols and recipes, Syncs with Health app

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Primal Training free?

Primal Training is free to download, with no in-app purchases.

### Is Starrett System free?

Starrett System is free to download, with no in-app purchases.

### Which has better reviews, Primal Training or Starrett System?

Starrett System is rated higher. Primal Training averages 4.7 out of 5 from 14 ratings, while Starrett System averages 5.0 from 6 ratings.

### Do Primal Training or Starrett System have ads?

Neither Primal Training nor Starrett System shows ads.

### Which is updated more often, Primal Training or Starrett System?

Primal Training ships an update monthly, and Starrett System monthly. Most recently, Primal Training was updated on September 24, 2026 and Starrett System on September 21, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*